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ManagementPermission (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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java.lang.management
Class ManagementPermission

java.lang.Object
  java.security.Permission
      java.security.BasicPermission
          java.lang.management.ManagementPermission

All Implemented Interfaces:

Serializable, Guard

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public final class ManagementPermission
extends BasicPermission

The permission which the SecurityManager will check when code that is running with a SecurityManager calls methods defined in the management interface for the Java platform.

The following table provides a summary description of what the permission allows, and discusses the risks of granting code the permission.

Permission Target Name	What the Permission Allows	Risks of Allowing this Permission
control	Ability to control the runtime characteristics of the Java virtual machine, for example, setting the -verbose:gc and -verbose:class flag, setting the threshold of a memory pool, and enabling and disabling the thread contention monitoring support.	This allows an attacker to control the runtime characteristics of the Java virtual machine and cause the system to misbehave.
monitor	Ability to retrieve runtime information about the Java virtual machine such as thread stack trace, a list of all loaded class names, and input arguments to the Java virtual machine.	This allows malicious code to monitor runtime information and uncover vulnerabilities.

Programmers do not normally create ManagementPermission objects directly. Instead they are created by the security policy code based on reading the security policy file.

Since:

1.5

See Also:

BasicPermission, Permission, Permissions, PermissionCollection, SecurityManager, Serialized Form

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Constructor Summary
ManagementPermission(String name)           Constructs a ManagementPermission with the specified name.
ManagementPermission(String name, String actions)           Constructs a new ManagementPermission object.

 

Method Summary

 

Methods inherited from class java.security.BasicPermission
equals, getActions, hashCode, implies, newPermissionCollection

 

Methods inherited from class java.security.Permission
checkGuard, getName, toString

 

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Constructor Detail

ManagementPermission

public ManagementPermission(String name)

Constructs a ManagementPermission with the specified name.

Parameters:

name - Permission name. Must be either "monitor" or "control".

Throws:

IllegalArgumentException - if the name argument is invalid.

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ManagementPermission

public ManagementPermission(String name,
                            String actions)
                     throws IllegalArgumentException

Constructs a new ManagementPermission object.

Parameters:

name - Permission name. Must be either "monitor" or "control".

actions - Must be either null or the empty string.

Throws:

IllegalArgumentException - if arguments are invalid.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.